archived-ballistic/spec/arm64_xml/mul_madd.xml

<?xml version="1.0" encoding="utf-8"?>
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<instructionsection id="MUL_MADD" title="MUL -- A64" type="alias">
  <docvars>
    <docvar key="alias_mnemonic" value="MUL" />
    <docvar key="instr-class" value="general" />
    <docvar key="isa" value="A64" />
    <docvar key="mnemonic" value="MADD" />
  </docvars>
  <heading>MUL</heading>
  <desc>
    <brief>Multiply</brief>
    <alg>Rd = Rn * Rm</alg>
  </desc>
  <aliasto refiform="madd.xml" iformid="MADD">MADD</aliasto>
  <classes>
    <iclass name="Integer" oneof="1" id="iclass_general" no_encodings="2" isa="A64">
      <docvars>
        <docvar key="instr-class" value="general" />
        <docvar key="isa" value="A64" />
        <docvar key="mnemonic" value="MADD" />
      </docvars>
      <iclassintro count="2"></iclassintro>
      <regdiagram form="32" psname="aarch64/instrs/integer/arithmetic/mul/uniform/add-sub" tworows="1">
        <box hibit="31" name="sf" usename="1">
          <c></c>
        </box>
        <box hibit="30" width="2" name="op54" settings="2">
          <c>0</c>
          <c>0</c>
        </box>
        <box hibit="28" width="5" settings="5">
          <c>1</c>
          <c>1</c>
          <c>0</c>
          <c>1</c>
          <c>1</c>
        </box>
        <box hibit="23" width="3" name="op31" settings="3">
          <c>0</c>
          <c>0</c>
          <c>0</c>
        </box>
        <box hibit="20" width="5" name="Rm" usename="1">
          <c colspan="5"></c>
        </box>
        <box hibit="15" name="o0" usename="1" settings="1" psbits="x">
          <c>0</c>
        </box>
        <box hibit="14" width="5" name="Ra" usename="1" settings="5" psbits="xxxxx">
          <c>1</c>
          <c>1</c>
          <c>1</c>
          <c>1</c>
          <c>1</c>
        </box>
        <box hibit="9" width="5" name="Rn" usename="1">
          <c colspan="5"></c>
        </box>
        <box hibit="4" width="5" name="Rd" usename="1">
          <c colspan="5"></c>
        </box>
      </regdiagram>
      <encoding name="MUL_MADD_32A_dp_3src" oneofinclass="2" oneof="2" label="32-bit" bitdiffs="sf == 0">
        <docvars>
          <docvar key="alias_mnemonic" value="MUL" />
          <docvar key="datatype" value="32" />
          <docvar key="instr-class" value="general" />
          <docvar key="isa" value="A64" />
          <docvar key="mnemonic" value="MADD" />
        </docvars>
        <box hibit="31" width="1" name="sf">
          <c>0</c>
        </box>
        <asmtemplate><text>MUL  </text><a link="sa_wd" hover="32-bit general-purpose destination register (field &quot;Rd&quot;)">&lt;Wd&gt;</a><text>, </text><a link="sa_wn" hover="First 32-bit general-purpose source register holding multiplicand (field &quot;Rn&quot;)">&lt;Wn&gt;</a><text>, </text><a link="sa_wm" hover="Second 32-bit general-purpose source register holding multiplier (field &quot;Rm&quot;)">&lt;Wm&gt;</a></asmtemplate>
        <equivalent_to>
          <asmtemplate><a href="madd.xml#MADD_32A_dp_3src">MADD</a><text> </text><a link="sa_wd" hover="32-bit general-purpose destination register (field &quot;Rd&quot;)">&lt;Wd&gt;</a><text>, </text><a link="sa_wn" hover="First 32-bit general-purpose source register holding multiplicand (field &quot;Rn&quot;)">&lt;Wn&gt;</a><text>, </text><a link="sa_wm" hover="Second 32-bit general-purpose source register holding multiplier (field &quot;Rm&quot;)">&lt;Wm&gt;</a><text>, WZR</text></asmtemplate>
          <aliascond>Unconditionally</aliascond>
        </equivalent_to>
      </encoding>
      <encoding name="MUL_MADD_64A_dp_3src" oneofinclass="2" oneof="2" label="64-bit" bitdiffs="sf == 1">
        <docvars>
          <docvar key="alias_mnemonic" value="MUL" />
          <docvar key="datatype" value="64" />
          <docvar key="instr-class" value="general" />
          <docvar key="isa" value="A64" />
          <docvar key="mnemonic" value="MADD" />
        </docvars>
        <box hibit="31" width="1" name="sf">
          <c>1</c>
        </box>
        <asmtemplate><text>MUL  </text><a link="sa_xd" hover="64-bit general-purpose destination register (field &quot;Rd&quot;)">&lt;Xd&gt;</a><text>, </text><a link="sa_xn" hover="First 64-bit general-purpose source register holding multiplicand (field &quot;Rn&quot;)">&lt;Xn&gt;</a><text>, </text><a link="sa_xm" hover="Second 64-bit general-purpose source register holding multiplier (field &quot;Rm&quot;)">&lt;Xm&gt;</a></asmtemplate>
        <equivalent_to>
          <asmtemplate><a href="madd.xml#MADD_64A_dp_3src">MADD</a><text> </text><a link="sa_xd" hover="64-bit general-purpose destination register (field &quot;Rd&quot;)">&lt;Xd&gt;</a><text>, </text><a link="sa_xn" hover="First 64-bit general-purpose source register holding multiplicand (field &quot;Rn&quot;)">&lt;Xn&gt;</a><text>, </text><a link="sa_xm" hover="Second 64-bit general-purpose source register holding multiplier (field &quot;Rm&quot;)">&lt;Xm&gt;</a><text>, XZR</text></asmtemplate>
          <aliascond>Unconditionally</aliascond>
        </equivalent_to>
      </encoding>
    </iclass>
  </classes>
  <explanations scope="all">
    <explanation enclist="MUL_MADD_32A_dp_3src" symboldefcount="1">
      <symbol link="sa_wd">&lt;Wd&gt;</symbol>
      <account encodedin="Rd">
        <intro>
          <para>Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="MUL_MADD_32A_dp_3src" symboldefcount="1">
      <symbol link="sa_wn">&lt;Wn&gt;</symbol>
      <account encodedin="Rn">
        <intro>
          <para>Is the 32-bit name of the first general-purpose source register holding the multiplicand, encoded in the "Rn" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="MUL_MADD_32A_dp_3src" symboldefcount="1">
      <symbol link="sa_wm">&lt;Wm&gt;</symbol>
      <account encodedin="Rm">
        <intro>
          <para>Is the 32-bit name of the second general-purpose source register holding the multiplier, encoded in the "Rm" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="MUL_MADD_64A_dp_3src" symboldefcount="1">
      <symbol link="sa_xd">&lt;Xd&gt;</symbol>
      <account encodedin="Rd">
        <intro>
          <para>Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="MUL_MADD_64A_dp_3src" symboldefcount="1">
      <symbol link="sa_xn">&lt;Xn&gt;</symbol>
      <account encodedin="Rn">
        <intro>
          <para>Is the 64-bit name of the first general-purpose source register holding the multiplicand, encoded in the "Rn" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="MUL_MADD_64A_dp_3src" symboldefcount="1">
      <symbol link="sa_xm">&lt;Xm&gt;</symbol>
      <account encodedin="Rm">
        <intro>
          <para>Is the 64-bit name of the second general-purpose source register holding the multiplier, encoded in the "Rm" field.</para>
        </intro>
      </account>
    </explanation>
  </explanations>
</instructionsection>